MOF玻璃膜研究进展  

Research progress in MOF Glass membrane

作　　者：宋昊 张雅婷 金花 李砚硕 SONG Hao;ZHANG Yating;JIN Hua;LI Yanshuo(Ningbo University,Ningbo 315211,China)

机构地区：[1]宁波大学,宁波315211

出　　处：《膜科学与技术》2024年第6期132-144,157,共14页Membrane Science and Technology

基　　金：国家自然科学基金项目(22178182,22178183);宁波市科技创新2025重大专项(2022Z154);浙江省省属高校基本科研业务费(SJLZ2023004)。

摘　　要：金属有机框架(MOF)材料,作为一类新兴的高性能分子筛膜材料,具有规整而均匀的亚纳米级孔道,可实现分子水平的混合物分离.受限于MOF的多晶性质,MOF膜容易产生晶间缺陷,从而降低分离选择性和合成重复性,不利于放大制备和工业应用.MOF玻璃材料由可形成液态的MOF材料熔融淬火形成,继承了前体MOF的化学连接性和组成,同时保留了MOF材料的永久孔隙率,可以实现对不同气体的选择性吸附.MOF玻璃材料的非晶态特性、易加工性和独特微孔结构使其成为制备无晶间缺陷、具有分子筛分性能的优异膜材料.本文总结了MOF材料的熔融机理,分析了不同种类的MOF玻璃材料,概述了其结构和性能,并且综述了近年来MOF玻璃膜的设计开发及其在气体分离应用方面的研究进展.Metal-organic framework(MOF)materials,as an emerging class of high-performance molecular sieve membrane materials,have regular and uniform sub-nanometer pores,which enable the separation of mixtures at the molecular level.Due to the polycrystalline nature of MOF,MOF membranes are prone to inter-crystalline defects,which reduces the separation selectivity and synthesis reproducibility,and is not conducive to scale-up production and industrial application.MOF glass materials,formed by the melt quenching of liquid-formable MOF materials,inherit the chemical connectivity and composition of the precursor MOF while retaining the permanent porosity of the MOF materials,which enables the selective adsorption of different gases.The amorphous properties,easy processability and unique microporous structure of MOF glass materials make them excellent membrane materials for the preparation of defect-free molecular sieving membranes.This paper summarizes the melting mechanism of MOF materials,examines various types of MOF glass materials with different structures and properties.Further,this article reviews recent research progress in the design and development of MOF glass membranes for gas separation.

关 键 词：金属有机骨架 非晶态 吸附 MOF玻璃膜 气体分离 

分 类 号：TQ028[化学工程]